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2. List of telescope parts and construction - Wikipedia

   en.wikipedia.org/wiki/List_of_telescope_parts...

   Mirrors and lenses are the critical light-bending components of a telescope. Objective: The first lens or curved mirror that collects and focuses the incoming light. ...

3. Lists of telescopes - Wikipedia

   en.wikipedia.org/wiki/Lists_of_telescopes

   Telescope History Archived 2021-02-14 at the Wayback Machine, NASA Official Website, accessed 02/09/2019; History of the Telescope, accessed 02/09/2019; List of astronomical observatories and telescopes, Encyclopedia Britannica, 02/09/2019

4. Telescoping (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Telescoping_(mechanics)

   Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...

5. List of telescope types - Wikipedia

   en.wikipedia.org/wiki/List_of_telescope_types

   List of optical telescope types [ edit ] Optical telescopes can be classified by three primary optical designs (refractor, reflector, or catadioptric), by sub-designs of these types, by how they are constructed, or by the task they perform.

6. The top 7 mental health challenges of the holidays and how to ...

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   Beyond your own to-do list, it's easy to overcommit to social events or take on extra responsibilities, but sometimes, saying no is essential for your well-being. Consider it a gift to yourself. 3.

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Fix problems signing into your AOL account - AOL Help

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   Use the Sign-in Helper to locate your username and regain access to your account by entering your recovery mobile number or alternate email address.; To manage and recover your account if you forget your password or username, make sure you have access to the recovery phone number or alternate email address you've added to your AOL account.

9. How Long Does a Bottle of Wine Last After Opening? - AOL

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   Geomagnetic storm kicks off 2025 with Northern Lights display across parts of US. Advertisement. Advertisement. Advertisement. Related articles. Show comments. Advertisement. Advertisement.